000 00267nam a2200121Ia 4500
082 _bKOH
100 _aKohali, Madhurima
245 _aSanchyanika
260 _aNew Delhi
_bRadha Krishan pub.
_c1991
300 _a104p.
650 _aGeneral Books
650 _aApplied Sc.
999 _c1170
_d1170